Home / 39,877.91-55,035.40-29,788.84

Finding the Fourth Proportional to 39,877.91, 55,035.40 and 29,788.84

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Solution

The fourth proportional to 39,877.91, 55,035.40 and 29,788.84 is: 41,111.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,877.91 : 55,035.40 = 29,788.84 : x
  2. Step 2: Convert to fraction form
    39,877.91/55,035.40 = 29,788.84/x
  3. Step 3: Cross multiply
    39,877.91x = 55,035.40 × 29,788.84
  4. Step 4: Simplify right side
    39,877.91x = 1,639,440,512.88
  5. Step 5: Solve for x
    x = 1,639,440,512.88/39,877.91
  6. Step 6: Final answer
    x = 41,111.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.